This is the Pack-a-Punched AUG from Call of Duty: Black Ops. It is supposed to have a Masterkey, but they are hard to make in lego so I left it out. However it is a very good model. AUG-50M3 is actually leet for AUGSOME. I know that the magazine is not curved, that's why when I put the lego 2x2 pieces in between every three bricks so when I buy it, the mag will curve.